package com.common.tool;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonValueProcessor;

/** 
* JSON 日期格式处理（java转化为JSON） 
* @author Michael sun 
*/ 
public class JsonDateValueProcessor implements JsonValueProcessor { 

    /** 
     * datePattern 
     */ 
    private String datePattern = "yyyy-MM-dd"; 

    /** 
     * JsonDateValueProcessor 
     */ 
    public JsonDateValueProcessor() { 
        super(); 
    } 

    /** 
     * @param format 
     */ 
    public JsonDateValueProcessor(String format) { 
        super(); 
        this.datePattern = format; 
    } 

    /** 
     * @param value 
     * @param jsonConfig 
     * @return Object 
     */ 
    public Object processArrayValue(Object value, JsonConfig jsonConfig) { 
        return process(value); 
    } 

    /** 
     * @param key 
     * @param value 
     * @param jsonConfig 
     * @return Object 
     */ 
    public Object processObjectValue(String key, Object value, 
            JsonConfig jsonConfig) { 
        return process(value); 
    } 

    /** 
     * process 
     * @param value 
     * @return 
     */ 
    private Object process(Object value) { 
        try { 
            if (value instanceof Date) { 
                SimpleDateFormat sdf = new SimpleDateFormat(datePattern, 
                        Locale.UK); 
                return sdf.format((Date) value); 
            } 
            return value == null ? "" : value.toString(); 
        } catch (Exception e) { 
            return ""; 
        } 

    } 

    /** 
     * @return the datePattern 
     */ 
    public String getDatePattern() { 
        return datePattern; 
    } 

    /** 
     * @param pDatePattern the datePattern to set 
     */ 
    public void setDatePattern(String pDatePattern) { 
        datePattern = pDatePattern; 
    } 

}
